Sheet music turner



7 Dec. 18, 1945. MALETTA 2,391,175

SHEET MUS IC TURNER Filed Sept. 26, 1944 3 Sheets-Sheet 1 i INVENTOR.

WITNESSES:

A'ITCIRN EYS Dec. 18, 1945.

A. MALETTA SHEET MUS IC TURNER Filed Sept. 26, 1944 3 Sheets-Sheet 2 WITNESSES:

fl/e/"z Mada fa INI'ENTOR.

yam/r46 ATTORNEYS Dec. 18, 1945. MALETTA 2,391,175-

SHEET MUS IC TURNER Filed Sept; 26, 1944 3 Sheets-Sheet 5 WITNESSES:

ATTORNEYS v Patented Dec. 18, 1945 UNITED STATES PATENT OFFICE SHEET MUSIC TURN-ER Albert Maletta, Yakima, Wash.

Application September 26, 1944, Serial No..55'5,852

(Cl. '84-.'5l)3..)

'6 Claims.

My invention relates to the disposition of sheet music and the like, and has among its ob- .i'ec'ts and advantages the provision of an improved sheet music turner.

In the accompanying drawings:

Figure l is a front elevational view of a conventional music stand illustrating my invention applied thereto;

Figure 2 is a side elevational view;

Figure 3 is a detail view of a turning mechanism enclosed in a cabinet constituting .a base, with one wall of the cabinet removed;

Figure 4 is a. sectional view along the line 4-4 of Figure 3;

Figure 5 is a, fragmentary detail view of the sheet turning gripper mechanism;

Figure 6 is .a sectional view along the line 6-6 of Figure 5;

.Figure '7 is a sectional view valong the line Fl--'l of Figure 5;

Figure 8 is a sectional 'view along the line 88 of Figure 5;

Figure 9 is a view taken from the position indicated by line 9 9 of Figure 8;

Figure 10 is a sectional detail view of a swivel joint;

Figure 11 is a sectional view along line lI-l=l of Figure 1.0;

Figure .12 .is a sectional detail view of .a portion of the swivel joint;

Figure 13 is a perspective view of a sheet music bar attached to the rack 12 .for supporting the sheet music at the proper height; and

Figure 14 is a sectional view of one :of the claims which connect my invention with the sheet music stand for support.

In the embodiment selected for illustration, Figures 1 and 2 illustrate a conventional music stand l0 having the usual rack 12 connected with a rod I4 telescopically connected with a sleeve [6 to which the supporting legs 18 are connected.

My invention comprises an upright tube 20 bolted at 22 to a mechanism-enclosing cabinet and base 24, which rests on the floor 26 with the legs 18. A removable cover 28 is provided for the cabinet 24. I

Inside the cabinet 24 and to one wall thereof is bolted a plate 3|], as at 32, to which plate is pivoted a T bar 34, as at 36. To each of the branches 38 of the T bar 34 is pivotally connected at 40 one end of a link 42. Each link 42 is engaged by a spring 44 which urges that link against the other. Both springs 44 are secured to a tubular guide member 46 mounted on the plate 38. As'lide bar-4B is slidably guided in the tubular member 46 and has its upper end arranged for selective engagement with shoulders '58 on the links 42.

T0 the lower end of the slide bar 48 is connected one end of a tension spring 52, the other end of the spring being connected with a pin 54 attached to the cabinet '24. The spring 52 normally holds the bar 48 in the position of Figure 3, further downwardmovement of the bar being restrained by reason of a pin 56 attached thereto for engagement with the upper end of the tubular member 46. Foot operated lever 58 extends through an opening 68 in one wall of the cabinet 24, and the .lever is pivoted intermediate its ends to the cabinet, as at 62. A link 64 connects the inner end of the lever 58 with'the lower end of the slide bar 48 so that downward movement of the exterior end of the lever 58 imparts upward movement to the slide bar 48.

When viewed according to Figure 3, upward movement of the slide bar 48 imparts corresponding movement to the link 42 engaged by the bar. Such upward movement of this link :42 imparts countcr-clockwise rotation to the T bar 34. Upon completion of its counter-clockwise movement, the T bar 34 imparts downward movement to the left hand link 42 to bring its shoulder to a position corresponding to the shoulder on the right hand link in Figure 3. When the lever 58 returns to its normal position of Figure 3, upward movement of the slide bar 48 will engage the shoulder 58 of the left hand link 42 for pivoting the T bar 34 in a clockwise direction to the position of Figure 3. Guide bars 66 engage opposite sides of the T bar 34 to provide a supporting track for the bar as it is pivoted from one position to the other.

A right angular bend 68 is formed at the upper end of the T bar 34,, to which band is connected a U-shaped member 10 through the medim of a swivel joint 12. A strap 14 extends loosely between the opposed side elements of the U-shaped member 10 and is fixedly connected with an upright shaft 16 rotatably journaled in a bearing 18 attached to the cabinet 24 and in a bearing 88 located inside the tube 20 near its upper end, see Figure 10. Thus oscillatory movement of the T bar 34 is translated into rotary motion of the shaft 16.

Referring to Figures 10 and 12, a universal joint 82 connects the upper end of the tube 20 with a head 84. This universal joint comprises a socket member 88 having its neck 88 fixedly secured to the tube 20 by screws 90. A ball memher 92 fits inside the socket member 86 and is pro: vided with a flange 94 fixedly secured to the head 84 by screws 96, see Figure 10.

In Figure '7, the head 84 is of hollow formation and is provided with an opening 98 for the passage of a flexible shaft portion I80 having one end connected with the shaft and its other end connected with a shaft I82 mounted in a bearing I52. To the shaft IE2 is fixedly secured a gear I55 by a set screw I88. The gear I06 lies on an internal flange III) in the head 84 and meshes with a pinion II2 mounted on a shaft He having one end disposed in an opening in a flange I It on the head 82 and its other end lying in an opening in a cover I I8 secured to'the flange the strap I28 and its other end engaging the body I58 for yieldingly holdingthe strap I28 vertically in opposing engagement with its companion strap I26. A, rounded corner I38 is provided on the strap I28 so that this strap may be pivoted in.

one direction downwardly in the direction of the arm I22. V

To firmly secure the .tube to the stand I8, brackets I68 have loops J42 encircling the tube 2G and spaced resilient elements I44 which snap over the respective bar I4 and the tube I6. Bracket I 38 is made in sections I46 and M8 adjustably connected together by a bolt I50 passing through an opening in the section Hi6 and through a slot I52 in the section I48.

Figures 1 and 2 illustrate the head 84 in its operating position with respect to the rack I2, the universal joint 82 permitting precise adjustment of thehead with respect to .the rack. The socket member .86 comprises sections I54, see Figure 11, having flanges I56 which are connected by a screw I58 and a. hand screw I68. Tightening of the screw Hi8 clamps the socket 86 to the head 92 so as to prevent accidental pivotal movement thereof.- r

A bar I32 is provided with clips I64 for connection with the rack I2 to support the supply I63 of sheet music. v.

With a sheet of music I88 gripped between the straps I and I28 of the respective grippers'l24, the sheet I68 may be turned by applying pressure to the lever 58. Rotation of the shaft I6 imparts rotarymotion to the gear I86 which meshes with the pinion II2.

Since the arm I22 is fixedly secured to the pinion IIZ, rotary motion of the pinion pivots the arm 522 for moving the sheet I68 to the opposite side of the rack I2 and thereby reverses the sheet. In one downward movement of the lever 58, the arm I22 pivots from one position to its second position, and the second downward movement of the lever 58 pivots the arm I22 from its second position back to its first position.

- Without further elaboration, the foregoing will so fully illustrate my invention, that others may, by applying current knowledge, readily adapt the same for use under various conditions of serv-.

ice.

I claim:

1. A sheet music turner comprising a standard having a head, an arm pivoted on said head provided witl ra sheet gripper means, a foot operated lever, a pivoted T bar movable to first and second positions, a link pivoted to each of two branches of said T bar, means operatively connected with said lever arranged to alternately engage the links to respectively pivot said T bar to said first and second positions, and an operating connection between the third branch of the T bar and said arm to pivot the arm and its gripper means to first and second sheet holding positions upon movement of said T bar to its respective first and second positions. V .7

2. The invention described in claim 1' wherein thereis provided a universal joint between said standard and said head, andin which a flexible coupling is interposed in said operating connection at saiduniversal joint. I

3. The invention described in claim 1 wherein said operating connectionincludes a pinion keyed to said arm, a gear meshingwith said pinion,

, a vertical shaft connected with saidgear, and

an oscillatory arm fixed to said vertical shaft and slidably connected with the third branch of said T bar to oscillate the vertical shaft upon pivotal movement of'the T bar. I H

4. The invention described in claim 1/ wherein said links have shoulders selectively engaged by said second-mentioned means, and in which said links are provided with springs biasingithe links into engagement one with the other to bring said shoulders into engaging positions with respect to said second-mentioned means in the respective positions of the T bar. I

5. The invention described in claim 1 wherein said sheet gripper means each comprises two transparent, resilient straps positioned for pinching a sheet therebetween, one strap in each g'ripper unit being mounted for pivotal movement with respect to its companion strap, and means slidably connecting each gripper means with said arm. s 1

6. A'sheet music turner comprising a standard,

an arm pivoted on said standardand provided with a sheet gripper means, a foot operated-lever, a pivotally mounted member movable to first and second positions, linkspivotally connected with said member, means operatively connected with said lever and arranged to alternately engage the links to respectively pivot said member to saiu. first and second positions, and an operating connection between said member and said arm to pivot the latter and the sheet gripper means to first and second sheet holding positions upon movement of saidmember to its respective first and second positions.

- ALBERT MALETTA. 

